ASTM F2434-2018 Standard Specification for Metal Insert Fittings Utilizing a Copper Crimp Ring for SDR9 Cross-linked Polyethylene (PEX) Tubing and SDR9 Cross-li.pdf

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1、Designation: F2434 14F2434 18 An American National StandardStandard Specification forMetal Insert Fittings Utilizing a Copper Crimp Ring for SDR9Cross-linked Polyethylene (PEX) Tubing and SDR9 Cross-linked Polyethylene/Aluminum/Cross-linked Polyethylene(PEX-AL-PEX) Tubing1This standard is issued und

2、er the fixed designation F2434; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since t

3、he last revision or reapproval.1. Scope*1.1 This specification covers metal insert fittings with o-ring seals and copper crimp rings for use with Cross-linkedPolyethylene (PEX) and Cross-linked Polyethylene/Aluminum/Cross-linked Polyethylene (PEX-AL-PEX) tubing in 12, 34 1, and114 in. nominal diamet

4、ers that meet the requirements for Specifications F876 or F3253, and F2262. respectively. These fittings areintended for use in 125 psi (861.9 kPa) (PEX-AL-PEX) and 100 psi (689.5 kPa) (PEX) cold- and hot-water distribution systemsoperating at temperatures up to and including 180F (82C).180 F (82 C)

5、. Included are the requirements for materials,workmanship, dimensions, performance, and markings to be used on the fittings and rings.1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematicalconversions to SI units that are provided fo

6、r information only and are not considered standard.1.3 Compliance with this specification requires that these fittings be tested and certified to Specification F877 and F2262.1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsi

7、bilityof the user of this standard to establish appropriate safety safety, health, and healthenvironmental practices and determine theapplicability of regulatory limitations prior to use.1.5 This international standard was developed in accordance with internationally recognized principles on standar

8、dizationestablished in the Decision on Principles for the Development of International Standards, Guides and Recommendations issuedby the World Trade Organization Technical Barriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2B16/B16M Specification for Free-Cutting Brass Rod,

9、 Bar and Shapes for Use in Screw MachinesB62 Specification for Composition Bronze or Ounce Metal CastingsB140/B140M Specification for Copper-Zinc-Lead (Red Brass or Hardware Bronze) Rod, Bar, and ShapesB283 Specification for Copper and Copper-Alloy Die Forgings (Hot-Pressed)B371/B371M Specification

10、for Copper-Zinc-Silicon Alloy RodB584 Specification for Copper Alloy Sand Castings for General ApplicationsD1600 Terminology for Abbreviated Terms Relating to PlasticsD2122 Test Method for Determining Dimensions of Thermoplastic Pipe and FittingsE18 Test Methods for Rockwell Hardness of Metallic Mat

11、erialsF412 Terminology Relating to Plastic Piping SystemsF876 Specification for Crosslinked Polyethylene (PEX) TubingF877 Specification for Crosslinked Polyethylene (PEX) Hot- and Cold-Water Distribution SystemsF2262 Specification for Crosslinked Polyethylene/Aluminum/Crosslinked Polyethylene Tubing

12、 OD Controlled SDR9 (With-drawn 2018)31 This specification is under the jurisdiction of ASTM Committee F17 on Plastic Piping Systems and is the direct responsibility of Subcommittee F17.10 on Fittings.Current edition approved Aug. 1, 2014Nov. 1, 2018. Published September 2014December 2018. Originall

13、y approved in 2004. Last previous edition approved in 20092014as F2435 - 09.F2435 - 14. DOI: 10.1520/F2434-14.10.1520/F2434-18.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information,

14、 refer to the standards Document Summary page on the ASTM website.3 The last approved version of this historical standard is referenced on www.astm.org.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to t

15、he previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.*A Summary

16、 of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1F3253 Specification for Crosslinked Polyethylene (PEX) Tubing with Oxygen Barrier for Hot- and Cold-Water HydronicDistribution Syst

17、ems2.2 ASME Standards:4B1.20.1 Pipe Threads General Purpose (Inch)B16.18 Cast Copper Alloy Solder Joint Pressure FittingsB16.22 Wrought Copper and Copper Alloy Solder Joint Pressure Fittings2.3 Manufacturers Standardization Society Standard:SP-104 Wrought Copper Solder Joint Pressure Fittings52.4 NS

18、F International Standards:6NSF/ANSI 14 Plastic Piping Components and Related MaterialsNSF/ANSI 61 Drinking Water System Components-Health Effects3. Terminology3.1 Definitions are in accordance with Terminology F412 and abbreviations are in accordance with Terminology D1600, unlessotherwise indicated

19、.4. Classification4.1 This specification covers one class of fittings and copper crimp rings suitable for use with tubing that meets the requirementsof Specifications F876 or F3253 and PEX-AL-PEX tubing that meets the requirements of Specification F2262.5. Materials and Manufacture5.1 FittingsThe fi

20、ttings shall be made from one of the following metals:5.1.1 Cast Copper AlloysCast copper alloy fittings shall be made from material meeting the requirements of SpecificationB584, Copper Alloy UNS Nos. C84400, C83800, C87850 or C89844 or Specification B62 Copper Alloy UNS No. C83600.5.1.2 Machined B

21、rassMachined brass fittings shall be made from material meeting the requirements of SpecificationB371/B371M, Copper Alloy UNS No. C69300, Specification B140/B140M Copper Alloy UNS No. C31400, Specification B283Copper Alloy UNS No. C37700, or Specification B16/B16M Copper Alloy UNS No. C36000 or C693

22、00 Copper Alloy UNS No.C27450.5.1.3 Forged BrassForged brass fittings shall be made from material meeting the requirements of Specification B283 CopperAlloy UNS Nos. C37700 or Copper Alloy UNS No. C27450.5.2 Crimp RingsCrimp rings shall be made from copper UNS Nos. C10200, or C12200, and shall be bl

23、ack in color oralternately be identified per 10.2.3.2 of this specification. The crimp rings shall have a minimum allowable hardness of 35 and amaximum allowable hardness of 45 on the Rockwell 15T scale when measured according to Test Methods E18.5.3 O-ringsO-rings used on the copper alloy fittings

24、to make a static seal shall be manufactured from ethylene propylenerubber (EPDM) or silicone rubber (Si), with a ShoreAdurometer between 60 and 70 when tested in accordance with SpecificationD2240.6. General Requirements6.1 The following sections of Specifications F877 and F2262 constitute a part of

25、 this specification.6.1.1 Use with PEX Tubing (F877):6.1.1.1 Requirements,6.1.1.2 Test Methods, and6.1.2 Use with PEX-AL-PEX Tubing (F2262):6.1.2.1 Performance Requirements of Connectors except product marking section.6.1.3 Retest and Rejection.6.2 In addition, when a section with a title identical

26、to that referenced in 6.1, appears in this specification, it contains additionalrequirements that supplement those appearing in Specifications F877 and F2262.6.3 DimensionsAny randomly selected fitting or fittings, and crimp ring or crimp rings, shall be used to determine dimensions.Measurements sha

27、ll be made in accordance with Test Method D2122, except determine diameters by making measurements at fourlocations spaced approximately 45 apart around the circumference. Inspection and gauging of solder joint ends shall be inaccordance with ASME B16.18, ASME B16.22, or MSS SP-104.4 Available from

28、American Society of Mechanical Engineers (ASME), ASME International Headquarters, ThreeTwo Park Ave., New York, NY 10016-5990,http:/www.asme.org.5 Available from Manufacturers Standardization Society of the Valve and Fittings Industry (MSS), 127 Park St., NE, Vienna, VA 22180-4602, http:/www.mss-.6

29、Available from NSF International, P.O. Box 130140, 789 N. Dixboro Rd., Ann Arbor, MI 48113-0140, http:/www.nsf.org.F2434 1826.4 GeneralAll performance tests shall be performed on assemblies of fittings, crimp rings, PEX, and PEX-AL-PEX tubing.Fittings and crimp rings shall meet the material and dime

30、nsional requirements of this specification. PEX tubing shall meet therequirements of Specification F876 or F3253. PEX-AL-PEX tubing shall meet the requirements of Specification F2262.Assemblyof test specimens shall be in accordance with 9.1.1. Use separate sets of assemblies for each performance tes

31、t requirement. Inaddition, fittings shall be designed with sufficient overall dimensions to allow proper use of crimp tool without interference withpreviously completed crimps on the same fitting.7. Dimensions7.1 Dimensions and TolerancesThe dimensions and tolerances of fittings and crimp rings shal

32、l be as shown in Fig. 1, Fig. 3,Fig. 4, and Table 1, when measured in accordance with 6.3.7.1.1 AlignmentThe maximum angular variation of any opening shall not exceed 1 off the true centerline axis.7.1.2 Fittings with Solder Joint EndsSolder joint ends shall be in accordance with ASME B16.22, ASME B

33、16.18, or MSSSP-104.7.1.3 Tapered Threaded EndsFitting threads shall be right-hand conforming to ASME B1.20.1. They shall be taper threads(NPT).8. Workmanship, Finish, and Appearance8.1 The sealing surfaces of the insert shall be smooth and free of foreign material. Fitting walls shall be free of cr

34、acks, holes,blisters, voids, foreign inclusions, or other defects that are visible to the unaided eye, that affect the wall integrity.SizeAOutsideDiameterof RibBMini-mumIDL1Distanceto FirstRibL2MinInsertLengthAHMinRibHeightNum-berofRibsBWRibCWidthGRibSpacingTypicalTMini-mumWallDR1Mini-mumRibRa-diusR

35、2Mini-mumRa-diusSIsolatorDiameterEEGrooveDepth12 in. 0.471 0.004 0.310 0.214-0.224 0.625 0.013 3 0.030.04 0.0580.066 0.028 0.006 0.015 0.518 0.002 0.040 0.00134 in. 0.667 0.004 0.500 0.214-0.224 0.625 0.013 3 0.030.04 0.0580.066 0.037 0.006 0.015 0.738 0.005 0.040 0.0011 in. 0.856 0.004 0.667 0.214-

36、0.224 0.795 0.013 4 0.030.04 0.0580.066 0.041 0.006 0.015 0.963 0.005 0.040 0.001114 in. 1.045 0.004 0.860 0.214-0.224 0.795 0.013 4 0.030.04 0.0580.066 0.045 0.006 0.015 1.150 0.005 0.040 0.001A Measured from shoulder of rib to end of fitting.B Lead chamfer area is not considered a rib.C Rib sides

37、may be angled.D Applies to entire fitting, not just insert area.E This diameter serves as a tube stop to isolate Aluminum layer, in PEX-AL-PEX tubing, preventing contact with the brass.FIG. 1 Fitting Insert Dimensions and TolerancesF2434 1839. Assembly9.1 Crimp JointsInsert fittings shall be joined

38、to PEX, or PEX-AL-PEX, tubing by the compression of a copper crimp ringaround the outer circumference of the tubing, forcing the tubing material into annular spaces formed by ribs on the fitting. Insertfittings and crimp rings shall meet the dimensional and material requirements of this standard. Th

39、e dimensions andout-of-roundness of the crimp ring, after it has been crimped, shall be in accordance with Table 1.9.1.1 Crimping ProcedureThe crimping procedure shall be as follows: slide the crimp ring onto the tubing, insert the ribbedend of the fitting into the end of the tubing until the tubing

40、 contacts the shoulder of the fitting or tube stop. The crimp ring shallthen be positioned on the tubing so the edge of the crimp ring is 18 to 14 in. (3.2 to 6.4 mm) from the end of the tube. The jawsof the crimping tool shall be centered over the crimp ring and the tool shall be held so that the c

41、rimping jaws are approximatelyperpendicular to the axis of the barb. The jaws of the crimping tool shall be closed around the crimp ring, compressing the crimpring onto the tubing. The crimp ring shall not be crimped more than once. Each crimp shall be checked to determine conformanceto the after-cr

42、imped dimensional requirements of Table 1.10. Product Marking10.1 Quality of MarkingThe marking shall be applied to the fittings in such a manner that it remains legible after installationand inspection.10.2 Content of Marking:10.2.1 Marking on fittings shall include manufacturers name or trademark,

43、 or some other identifying mark, and the ASTMstandard number.10.2.1.1 Where recessed marking is used on fittings, care shall be taken to see that the marking shall not cause cracks or reducethe wall thickness below the minimum specified.10.2.2 Marking on packaging shall include manufacturers name, f

44、itting size, and ASTM F2434.10.2.3 Crimp rings:10.2.3.1 Marking on crimp rings shall include manufacturers trademark or some other identifying mark and ASTM F2434.NOTE 1The Barb/O-ring design is covered by a patent. Interested parties are invited to submit information regarding the identification of

45、 analternative(s) to this patent item to theASTM International Headquarters.Your comments will receive careful consideration at a meeting of the responsibletechnical committee, which you may attend.FIG. 2 Sealing O-ring PlacementSizeIDInsideDiameterWO-ringCross Section12 in. 0.394 0.005 0.039 0.0033

46、4 in. 0.591 0.005 0.039 0.0031 in. 0.768 0.009 0.039 0.003114 in. 0.945 0.009 0.039 0.003FIG. 3 Fitting O-ring Dimensions and TolerancesF2434 18410.2.3.2 Manufacturer of crimp rings may use an alternate identifying marking in place of the “black in color” provided the ringis generally natural copper

47、 color with 18 in. minimum black font lettering stating “PEX” or “PEX-AL-PEX,” or both legibly printedin two (2) locations spaced equally, approximately 180 on the rings outer circumference. For sizes smaller than 34 in. where both“PEX” and “PEX-AL-PEX” marks are applied, it is permissible to only p

48、rint “PEX” and “PEX-AL-PEX” in one location on thecircumference.11. Quality Assurance11.1 When the product or product packing is marked with the ASTM designation F2434, the manufacturer affirms that theproduct was manufactured, inspected, sampled, and tested in accordance with this specification and

49、 has been found to meet therequirements of this specification.12. Keywords12.1 cold and hot water distribution; copper crimp rings; cross-linked polyethylene; metal insert fittings; PEX; PEX-AL-PEXSizeAAvg OutsideDiameterA,BB CWidthWall ThicknessB Average WallC ,D12 in. 0.750 0.003 0.056 0.0035 0.002 0.325 0.02034 in. 1.000 0.003 0.056 0.0035 0.002 0.325 0.0201 in. 1.250 0.003 0.049 0.0035 0.002 0.450 0.020114 in. 1.500 0.003 0.055 0.0035 0.002 0.550 0